Fast & Light Backpacking System
Fast & Light Backpacking System is backordered and will ship as soon as it is back in stock.
Return & Exchange Policy
Return & Exchange Policy
International Duties & Taxes
International Duties & Taxes
*All components must be purchased together to receive 15% off. Discount is applied automatically. Cannot be combined with other discounts.
Size Guide
Overview
The quilt is sized to fit you. The sheet is sized to fit your mattress.
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Clip quilts and sheets are sold separately.
Sizes can be mixed & matched to create the fit that’s right for you and your mattress.
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Zip quilts and sheets are sold together.
Regular, Large, and XL refer to the quilt size. 25" or 30" refers to the sheet size.
If you are an "active" sleeper or have a "wide" sleep position, consider sizing up to accommodate your sleep style. When in doubt, size up. Unlike mummy bags, there's no thermal disadvantage to a larger size Zenbivy because the quilt is always free to wrap snuggly around you. Bigger is always more comfortable and just as warm.
Quilt Sizing
On the chart below, locate your height and overarm measurement. To get your overarm measurement, stand with your arms hanging relaxed by your sides and loosely measure around the broadest part of your chest and arms.
Sheet Sizing
Zenbivy sheets are designed to fit most standard size mattresses on the market, both rectangular and tapered styles.
Our sheets fit most standard size mattresses (rounded-edge mattresses up to 4” thick and 3D-style mattresses up to 3.5” thick.) For thicker non-Zenbivy mattresses, scroll down to view our sheet guide.
Sheet Guide for Thick 3D-Style, Non-Zenbivy Mattresses
If you have a 3D mattress that's thicker than 3.5", you may just need to size up the sheet. Below is a list of common thick 3D-style mattresses and the Zenbivy sheet size each requires, if supported.
| Mattress | Size | Dimensions | Required Zenbivy Sheet Size |
| Therm-a-Rest NeoLoft | Regular | 22" x 73" x 4.6" | 25" |
| Regular Wide | 26" x 73" x 4.6" | 30" | |
| Large | 26" x 78" x 4.6" | 30" | |
| Exped MegaMat/DeepSleep/LuxeMat | Medium Wide | 25.6" x 72" x 4" | 30" |
| Long Wide | 25.6" x 77.6" x 4" | 30" | |
| Long Xtra Wide | 30.3" x 77.6" x 4" | Not supported | |
| Exped MegaMat Max | Medium Wide | 25.6" x 72" x 6" | Not supported |
| Long Wide | 25.6" x 77.6" x 6" | Not supported | |
| Long Xtra Wide | 30.3" x 77.6" x 6" | Not supported |
Quilt Dimensions
Backpacking quilts are measured by the cut-fabric dimensions. Filled and lofted quilts will be shorter/narrower. On average:
- 25°F quilts are approximately 2” shorter in both directions, for all sizes
- 10°F quilts are approximately 4” shorter in both directions, for all sizes
Convertible quilts are 6” longer when open/flat.
Circumference
The maximum circumference around your shoulders/hips/feet for each size combination when the quilt is attached to the sheet.
Dry Sack Sizing
Both the quilt and sheet will fit in the recommended Dry Sack size and there will still be room to throw in your Zenbivy SoftTop™ Pillow or a down jacket.
You can expect your bed to compress down to about half the original size of the Dry Sack. Example: 7L compresses down to 3-4L, 10L down to 5L, etc
Description
Description
The Fast & Light Backpacking System is built for ultralight backpackers who refuse to sacrifice real comfort, even when counting every ounce—delivering maximum comfort at minimum weight.
This all-in-one sleep system includes a Light Quilt (Fast Footbox™), Light Sheet Half Length, an Ultralight Mattress with included inflation storage sack, SoftTop™ Pillow, and a Dry Sack with Compression Caps for fully-welded, waterproof storage.
All product specs can be found at the bottom of this page. Select your sizes and colors from the drop-down menus before adding the bundle to your cart.
Sizing Support
Sizing Support
25" sheets fit all sizes of the Ultralight Mattress, including the 20x72
Regular pillowcases fit the Regular bladder & topper
Large pillowcases fit the Large bladder & topper
7L Dry Sack for all sizes of the Light Bed 25°F
15L Dry Sack for all sizes of the Light Bed 10°F
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Our Lightest Comfort-Focused Backpacking Bed
The Light Bed is our most comfortable lightweight backpacking bed, pairing premium 800FP HyperDRY™ down with an ultra-soft 25D Pongee liner. The cropped Light Sheet cuts weight while blocking drafts and keeping your pillow in place—without sacrificing comfort.
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![Close-up view of Zenbivy mattress showing offset air cell design, featuring diagonal baffle pattern for improved support and stability.]()
Ultralight & Uncommonly Supportive
The offset air cells create a diagonal baffle pattern that causes the mattress to twist against your body’s natural fold lines rather than collapse into them like horizontal and vertical baffles, resulting in a more supportive mattress.
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Modular, Customizable Comfort
The Zenbivy SoftTop™ Pillow is the only modular backpacking pillow that provides maximum comfort at minimum weight. The 3-piece design includes a down pillow topper for softness, an ultralight inflatable bladder for support and height adjustment, and a separate pillowcase for easy washing.
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Fully-Welded, Waterproof Storage
The Zenbivy Dry Sacks feature fully welded seams for a long-lasting watertight seal, a high-speed mechanical valve for instant compression, and durable yet lightweight construction. In other words: it's the best dry sack on the market.
- 7L for Light Bed 25°F
- 15L for Light Bed 10°F
